Revert "frontend: Enforce upgrade policy (#8157)"
Created by: keegancsmith
This reverts commit f4f3c4347ae03ea3692257f37ccb3d129aa5e84d.
We are running into flakey go tests:
dbtesting.go:74: Could not connect to DB dropdb --if-exists failed: exit status 1 dropdb: database removal failed: ERROR: database "sourcegraph-test-db" is being accessed by other users DETAIL: There is 1 other session using the database.